supply of material for construction of eco park at sitalpur north near nimdangi under mgnrega supply of material for const of eco park at sitalpur north near nimdangi under mgnrega , brick aggregate ( single size ) 40 mm nominal size , fine sand , hire charges of shuttering plank ( 25mm-30mm thick without prop including all fitting , thermocol 12.5 mm thick , stone aggregate ( single size ) 10 mm nominal size , stone aggregate ( single size ) 20 mm nominal size , portland cement , carriage of stone aggregate below 40 mm nominal size , coarse sand , polythene sheet ( 150 gm per sqm ) , hire charges of concrete mixer 0.25 to 0.40 cum with hpopper , vibrator ( needle type 40 mm ) , 1st class traditional bricks ( kiln burnt ) , loading unloading & stacking sand / stone aggregate ( less than 40mm nominal size , lump sum gst